You guys carry on polishing the turd if you want - it needs doing again if you want a professional finish.
Also I’d be worried about prep work… what stages of preparation did they go through?
That is one of the worst jobs I’ve seen in ages, no pride in their work - why on earth would you fix a tile that clearly has a big chunk out of it?
I’m afraid they’ve also used a ready mixed tub adhesive, which is not ok on that sized tile.
I’m sorry but you’ve had the work done by someone...
You need to read the instructions.
The membrane is crucial to the functioning of this tray, when installed correctly it is probably the best wetroom former out there.
Your patched fan hole is now absolutely fine.
Yes you can tile over a pipe chase, but I don’t like to see it so close to the edge of the tile - better away from the edges. If it’s a solid wall it could be filled easily and that is what I would do.
These are ceramic and have a little flex.
What size trowel for walls , very very flat walls, and is back skimming ok or should it be notched too?
Is pink bag ultra god for this?
Should it be clipped? If so how many along edge (3?, near corners and 1 in centre enough?)